Growing community of inventors

Tokyo, Japan

Hiroki Ashigaya

Average Co-Inventor Count = 3.00

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 5

Hiroki AshigayaTakashi Hasegawa (1 patent)Hiroki AshigayaMasaki Kawabata (1 patent)Hiroki AshigayaHiroyuki Miyano (1 patent)Hiroki AshigayaManabu Ohmizu (1 patent)Hiroki AshigayaHiroki Ashigaya (2 patents)Takashi HasegawaTakashi Hasegawa (136 patents)Masaki KawabataMasaki Kawabata (6 patents)Hiroyuki MiyanoHiroyuki Miyano (4 patents)Manabu OhmizuManabu Ohmizu (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sega Sammy Creation Inc. (2 from 19 patents)


2 patents:

1. 10115262 - Rotating apparatus for game system having light-emitting device attached thereto

2. 10109154 - Roulette lottery apparatus and timing control program thereof

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as of
1/11/2026
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